Phone Selector API fails to get phone numbers

Question

I need help in phone selector API (Eg. Tez/PhonePe/Bhim) . Referred this blog https://android-developers.googleblog.com/2017/10/effective-phone-number-verification.html. When am I trying to get phone numbers, which results empty dialog and disabled immediately. Please suggest me like how to get phone number without permissions.

Sculpturesque

Adding specific errors, screenshots and implemented code goes a long way in helping viewers help you debug the issue. Right now it is hard to say what might be happening without knowing anything about the implementation. – Prompt

Answer 1

I implemented this feature in my android application. Check this:

First, Open build.gradle inside your app module and add:

dependencies {
    ...

    //this is the main library to add for phone number detection
    implementation "com.google.android.gms:play-services-auth:16.0.1" 
}

Second, NumberDetectActivity.java:

import android.app.PendingIntent;
import android.content.Intent;
import android.content.IntentSender;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.credentials.Credential;
import com.google.android.gms.auth.api.credentials.HintRequest;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;

public class NumberDetectActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
    Button getNumber;
    TextView textView;
    String mobNumber;

    private final static int RESOLVE_HINT = 1011;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_number_detect);

        getNumber = (Button) findViewById(R.id.btn_get);
        textView = (TextView) findViewById(R.id.phone);

        getNumber.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                requestPhoneNumber();
            }
        });
    }


    protected void requestPhoneNumber() {
        GoogleApiClient googleApiClient = new GoogleApiClient.Builder(this)
                .addApi(Auth.CREDENTIALS_API)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .build();
        googleApiClient.connect();
        HintRequest hintRequest = new HintRequest.Builder()
                .setPhoneNumberIdentifierSupported(true)
                .build();
        PendingIntent intent = Auth.CredentialsApi.getHintPickerIntent(googleApiClient, hintRequest);
        try {
            startIntentSenderForResult(intent.getIntentSender(), RESOLVE_HINT, null, 0, 0, 0, null);
        } catch (IntentSender.SendIntentException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == RESOLVE_HINT) {
            if (resultCode == RESULT_OK) {
                Credential credential = data.getParcelableExtra(Credential.EXTRA_KEY);
                if (credential != null) {
                    mobNumber = credential.getId();
                    textView.setText(mobNumber);

                } else {
                    textView.setText("No phone number available");
                }
            }
        }
    }

    @Override
    public void onConnected(@Nullable Bundle bundle) {

    }

    @Override
    public void onConnectionSuspended(int i) {

    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

    }
}

Third, activity_number_detect.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".NumberDetectActivity">

    <Button
        android:id="@+id/btn_get"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="PRESS"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintTop_toTopOf="parent"/>
    <TextView
        android:id="@+id/phone"
        android:textSize="22sp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</android.support.constraint.ConstraintLayout>

Bobbyebobbysocks

Answer 2

The HintRequest api provided by google has not fully accomplished its feature and is quite buggy , Its works fine in google devices as said by developers:

OEM issue that their pixel or nexus phone working well

https://issuetracker.google.com/issues/77884951 .

https://github.com/googlesamples/android-credentials/issues/27

Abana